Shaping machine for sole-shaped shoe parts



Nov. 7, 1939. w. P. oseoon SHAPING MACHINE FOR sous-swarm) SHOE PARTSFiled Jan. 27, 1937 2 Sheets-Sheet l Nov. 7, 1939.

W. P. OSGOOD SHAPING MACHINE FOR SOLE-SHAPED SHOE PARTS 2 Sheets-Sheet 2Filed ian. 27, 1937 I IIIIIIIJII Patented Nov. 7, 1939 hurrah STATESSHAPING MACHINE FonsoLE-sHAPED- SHOEPARTS a g Walter P. Osgo0d,Malden,'Mas s.

Applieation January 27, 1937, Serial- N0; 122,559

"1 Claims. (01. 12421) y The present invention relates to machines whichare used in the manufacture of shoes to shape a sole-shaped shoe part.For purposes of disclosure the various features of the present inventionare illustrated as embodied in a machine for shaping a sock lining butit will be apparent to those skilled in the art that certain features ofthe present invention may be used advantageously in a machine forshaping other sole-shaped shoe parts such, for instance, as soles.

In the manufacture of shoes of the arch support type, the building in ofthe arch support necessitates changes in the form of the insole. Usuallythis change takes the form of flaps or ears integral with the insole atthe opposite shank edges thereof which are bent upwardly to cover theupwardly bent portions of the underlying arch support. With thisconstruction it is diflicult to secure a fiat sock lining in place uponthe insole.

The principal object of the present invention is to produce a machine bywhich a sole-shaped shoe part, the sock lining for instance, may beshaped to fit the underlying shoe structure'when applied thereto.

To the accomplishment of this object, and such others as may appear, thevarious features of the present invention relate to certain devices,combinations and arrangements of parts described hereinafter and thenset forth broadly and in detail in the appended claims.

The various features of the present invention will be readily understoodfrom an inspection of the accompanying drawings illustrating the bestform of the invention at present known to the inventor, in which,

Figure 1 is a view in front elevation;

Fig. 2 is a view in plan;

Fig. 3 is a view in right side elevation;

Fig. 4 is a detail view, partly in section, showing the relationship ofthe parts which cooperate to shape the work.

Fig. 5 is a View in perspective-of the clamp for clamping the shoe partupon the work support;

Fig. 6 is a view in perspective of the work support, and p p Fig.7 is aview in perspective of ashaped soc-k lining.

In the illustrated embodiment of the invention the sole-shaped socklining is supported flatwise upon a work support having a planar worksupporting surface comprising a rubber bed 8, (Fig. 6), secured, withits edges flush, to a plate 9. The sock lining is supported finishedface down upon the bed 8, the toe and heel portions of the sock liningengaging the broad ends of the bed, respectively. As illustrated in Fig.6 the toe and heel supporting portions of the work support are connectedby a narrow web arranged in the median line of the work support, thelateral edge faces of this web being curved concavely. With thisconstruction, the marginal shank portions of the sock lining overlaplateral blind concave edges It and I I in the work support.

The plate 9 is carried by a pair of vertical stilts I3 (Fig. 1) formedon one end of a, bracket M, (Fig. 3), which is bolted at its other endto a cross brace I5 of the machine frame. The frame is provided withbosses l6 and I1, (Fig. 1)., which receive, respectively, rods I8an-d'l'9 the upper and lower ends of which are tied together by upperand lower crossheads 26 and 21. The frame of the machine is carried by.atriangular base 22, (Fig. 2), mounted upon three legs 23 which may besecured to the floor.

With this construction, the rods l8 and I9 are free to slide in thebosses l6 and I1, their downward movement being limited by theengagement of the crosshead it with the upper bosses and their upwardmovement being limited by the engagement of the crosshead 2! with thelower bosses.

In order to clamp the sock lining-upon the work support, a bracket 24,(Fig. 3), projecting forwardly from the crosshead 20, loosely carriestwo depending rods 25, (Fig. 1) to the lowerends of which is secured aclamp 26 having the same shape as the bed 8. The work engaging face ofthe clamp 25 comprises a flexible sheet of rubber 2?, (Fig. 5), the endsof which are clamped between theupper surface of the clamp 26 and a pairof bars 28 securedthereto. As shown in Fig. 5, the lateral sides of therubber sheet are parparallel and overlie the concave edges l0 and H inthe bed 8.

The downward movement of the clamp 26 is limited by adjusting nuts 29carried by the upper ends of the rods 25 and arranged to engage thebracket 2%. Coiled about each rod 25 and interposed between the uppersurface of the clamp 26 and the bottom of the bracket 24 is a spring 30.To lower the clamp 2t upon the work, the crosshead 2| is connectedthrough a treadle rod 3| to a treadle (not shown) the usual coiledspring being provided to elevate the crosshead 2 I' and its associatedparts when the treadle is released.

clamp to cause the springs 30 to be compressed and thus cause the clampto exert an eflicient clamping pressure upon the work.

In order to shape the portions of the shoe part overlying the concaveedges I0 and II, the bracket 24 carries a shaping tool, herein shown asformed in two parts 32 and 33, both being fungiform. As shown in Fig. 3the bracket 24 is provided with two oppositely disposed hubs 34 and 35in each of which a rod-36 is loosely mounted. One end of the rod 36 isthreaded into a stem 31 projecting from the concave surface of a head38, the convex surface of which is substantially the surface of ahemisphere and terminates in a circular edge 39. The two heads 38 arepressed towards each other by springs 40, each being coiled about therod 36 and stem 31 and. interposed between the adjacent hub and theconvex surface of the head, there being a combined adjusting andclamping nut 42 on the free end of each stem to limit the movements ofthe heads towards each other.

As shown in Fig. 3, the stems 37 of the fungiform shaping tools 32 and33 are arranged in a plane parallel to the work supporting surface ofthe work support and normal to a plane intersecting the median line ofthe work support. The circular edges 39 of the fungiform shaping toolsare arranged in a plane parallel to the plane intersecting the medianline of the work support. The heads 38 of the fungiform shaping toolsare interposed between the last two named planes.

With this construction and arrangement, de-

" pression of the treadle first lowers the clamp to clamp the work uponthe work support and then causes the fungiform shaping tools to pass bythe concave edges l0 and II. During this movement the lower portion ofthe heads 38 engage the portion of the rubber sheet 27. As the movementcontinues the heads wipe the work underlying the sheet about the curvededges l0 and H. As the heads 38 approach the position of Fig. 4 thepressure of the shaping operation causes the heads 38 to move away fromeach other thus compressing the springs 40 which exert a heavy pressureon the bent work interposed between the heads 38 and the curved edges l3and H. Thus, during the shaping operation the shaping tool and the worksupport are moved relatively in two directions normal to each other.

What is claimed as new, is:

1. A machine for shaping a sole-shaped shoe part having, in combination,a work support having a planar work supporting surface and a concavecurvature along at least a portion of at least one of its lateral edgefaces, said curvature to be overlaid by the shoe part, a clamp forclamping the shoe part flatwise upon the work support, a fungiformshaping tool, and means for relatively moving the work support and thetool vertically to cause the head of the tool to bend that portion ofthe shoe part overlying the curvatwo about the curved edge thereof.

2. A machine for shaping a sole-shaped shoe part having, in combination,a work support having a planar work supporting surface and a concavecurvature along at least a portion of at least one of its lateral edgefaces, said curvature to be overlaid by the shoe part, a clamp forclamping the shoe part fiatwise upon the work support, a fungiformshaping tool, and means for relatively moving the work support and thetool vertically and laterally to cause the head of the tool to bend thatportion of the shoe part overlying the curvature about the curved edgethereof and against the edge face thereof.

3. A machine for shaping a sole-shaped shoe part having, in combination,a planar work support having at least one concave edge face to beoverlapped by the shoe part, a clamp for clamping the shoe part flatwiseupon the work support, a fungiform shaping tool having its stem arrangedin a plane parallel to the work supporting surface of the work supportand normal to a plane intersecting the median line of the work support,its circular edge arranged in a plane parallel to the second-namedplane, and its head interposed between the last two named planes, andmeans for relatively moving the work support and the tool vertically tocause the head of the tool to bend the overlapping portion of the shoepart about the concave edge face.

4. A machine for shaping a sole-shaped shoe part having, in combination,a work support having a planar work supporting surface and at least oneconcave edge face to be overlapped by the shoe part, a clamp forclamping the shoe part flatwise upon the work support, a fungiformshaping tool having its stem arranged in a plane parallel to the worksupporting surface of the work support and normal to a planeintersecting the median line of the work support, its circular edgearranged in a plane parallel to the second-named plane, and its headinterposed between the last two-named planes, and means for relativelymoving the work support and the tool vertically and laterally to causethe head of the tool to bend the overlapping portion of the shoe partabout the curved edge face and to press the bent portion of the shoepart against the curved edge face.

5. A machine for shaping a sole-shaped shoe part having, in combination,a work support having a planar work supporting surface and two concaveedge faces, one at each side of the work support to be overlaid by theshoe part, a clamp for clamping the shoe part fiatwise upon the worksupport, a shaping tool having two fungiform shaping parts, mounted tomove towards each other yieldingly and to move away from each otherunder the pressure of the shaping operation and means for relativelymoving the work support and the tool vertically to shape those portionsof the shoe part overlying the concave edge faces.

6. A machine for shaping a sole-shaped shoe part having, in combination,a work support having a planar work supporting surface and concavelateral side edges, a clamp for clamping the shoe part fiatwise upon thework support, and a shaping tool having two fungiform shaping parts towipe the lateral sides of the shoe part downward about the concavelateral side edges of the work support, respectively.

7. In a machine for shaping a sole-shaped shoe part, the combinationwith a support and a shaping tool mounted thereon comprising twofungiform shaping parts each comprising a stem loosely carried by thesupport, a head mounted on the stem, a spring coiled about the stem andinterposed between the support and the concave surface of the head, andmeans for limiting the movement of the stem under the influence of thespring.

WALTER P. OSGOOD.

